{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9602211","patent":{"patent_number":"US-9602211","title":"Distributed antenna system","assignee":null,"inventors":[],"filing_date":"2016-03-24T00:00:00.000Z","publication_date":"2017-03-21T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B"],"num_claims":20,"abstract":"A distributed antenna system includes a headend device for generating a downlink transmission signal by combining a plurality of downlink RF signals in different frequency bands, received from a plurality of base stations, and converting the downlink transmission signal into a downlink optical signal, a main remote device for receiving the downlink optical signal from the headend device, converting the downlink optical signal into the downlink transmission signal, and amplifying the plurality of downlink RF signals included in the downlink transmission signal, and a sub-remote device for receiving the downlink transmission signal distributed from the main remote device, and amplifying the plurality of downlink RF signals included in the received downlink transmission signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Distributed antenna system","description":"A distributed antenna system includes a headend device for generating a downlink transmission signal by combining a plurality of downlink RF signals in different frequency bands, received from a plura","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9602211","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9602211","citation_suggestion":"Patentable. \"Distributed antenna system\" (US-9602211). https://patentable.app/patents/US-9602211","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9602211","json":"https://patentable.app/api/llm-context/US-9602211","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:39:33.536Z"}